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cachematrix.R
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42 lines (37 loc) · 1.39 KB
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## My two functions are used to create a special matrix that stores a special matrix
## and cache's its inverse through the R command solve.
## The first function, makeCacheVector creates a special "matrix", which is really a list containing a function to
## set the value of the matrix
## get the value of the matrix
## set the value of the inverse matrix through the solve R command
## get the value of the inverse matrix through the solve R command
makeCacheMatrix <- function(x = matrix()) {
m <- "There is not value for the inverse matrix yet"
set <- function(y) {
x <<- y
m <<- NULL
}
get <- function() x
setinverse <- function(solve) m <<- solve
getinverse <- function() m
list(set = set, get = get,
setinverse = setinverse,
getinverse = getinverse)
}
## The following function calculates the inverse matrix of the special "matrix"
## created with the above function. However, it first checks to see if the inverse matrix
## has already been calculated. If so, it gets the inverse matrix from the cache
## and skips the computation.
## Otherwise, it calculates the inverse matrix of the data and
## sets the value of the inverse matrix in the cache via the setinverse function.
cacheSolve <- function(x, ...) {
m <- x$getinverse()
if(!is.null(m)) {
message("getting cached data")
return(m)
}
data <- x$get()
m <- solve(data, ...)
x$setinverse(m)
m
}